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This file, which was originally posted to https://opc.mfo.de/detail?photo_id=3577 Main page: "Those images labelled with 'Copyright: MFO' can be used on the terms of the Creative Commons License Attribution-Share Alike 2.0 Germany.", was reviewed on 3 June 2017 by reviewerWdwd, who confirmed that it was available there under the stated license on that date.
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